Clean up "HTTP Parameters" view a bit for EditEngine forms

Authored by epriestley.

Description

Clean up "HTTP Parameters" view a bit for EditEngine forms

Summary: Ref T10004. This lost a couple of fields when I rearranged how descriptions work. Restore them.

Test Plan:

  • Viewed "Using HTTP Parameters".
  • Everything had nice descriptions.
  • No more weird phantom/misleading 'comment' transaction in UI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10004

Differential Revision: https://secure.phabricator.com/D14822